Add @splatoon3ink@splatoon3.ink link to the footer

[catgirlinspace]

This pull request adds a link to @splatoon3ink@splatoon3.ink (https://fedi.splatoon3.ink/splatoon3ink) in the footer.

[catgirlinspace]

I forgot to mention that there is a proposed Fediverse logo that I could add next to the link, I use it on my website.

https://commons.wikimedia.org/wiki/File:Fediverse_logo_proposal.svg#mw-jump-to-license

[misenhower]

@phoebethewitch hmm, I'm not sure if that logo will look good at such a small size. I feel like there might be too much detail in it. We'd have to see how it looks.

Also, for the footer, I'd want it to be either monotone white or shades of gray.

[catgirlinspace]

@misenhower There's a monotone version too. https://commons.wikimedia.org/wiki/File:Fediverse_logo_proposal_(mono_version).svg

[catgirlinspace]

Thoughts?

[misenhower]

Looks good! I just tweaked the icon size to make it closer to the Twitter icon. (The PNG for that one had some padding around it.)

Thanks @phoebethewitch!!